D'après : Committee on Radio Astronomy Frequencies
Par définition ce devrait être des fréquences protègées !
Substance Fréquence Largeur Minimum de bande
centrale pour une observation efficace
Deuterium (DI) 327.384 MHz 327.0 - 327.7 MHz
Hydrogen (HI) 1420.406 MHz 1370.0 - 1427.0 MHz
Hydroxyl radical (OH) 1612.231 MHz 1606.8 - 1613.8 MHz
Hydroxyl radical (OH) 1665.402 MHz 1659.8 - 1667.1 MHz
Hydroxyl radical (OH) 1667.359 MHz 1661.8 - 1669.0 MHz
Hydroxyl radical (OH) 1720.530 MHz 1714.8 - 1722.2 MHz
Methyladyne (CH) 3263.794 MHz 3252.9 - 3267.1 MHz
Methyladyne (CH) 3335.481 MHz 3324.4 - 3338.8 MHz
Methyladyne (CH) 3349.193 MHz 3338.0 - 3352.5 MHz
Formaldehyde (H2CO) 4829.660 MHz 4813.6 - 4834.5 MHz
Methanol (CH2OH) 6668.518 MHz 6661.8 - 6675.2 MHz
Ionized Helium Isotope (3HeII) 8665.650 MHz 8660.0 - 8670.0 MHz
Methanol (CH3OH) 12.178 GHz 12.17- 12.19 GHz
Formaldehyde (H2CO) 14.488 GHz 14.44- 14.50 GHz
Cyclopropenylidene (C3H2) 18.343 GHz 18.28- 18.36 GHz
Water Vapour (H2O) 22.235 GHz 22.16- 22.26 GHz
Ammonia (NH3) 23.694 GHz 23.61- 23.71 GHz
Ammonia (NH3) 23.723 GHz 23.64- 23.74 GHz
Ammonia (NH3) 23.870 GHz 23.79- 23.89 GHz
Silicon monoxide (SiO) 42.821 GHz 42.77- 42.86 GHz
Silicon monoxide (SiO) 43.122 GHz 43.07- 43.17 GHz
Carbon monosulphide (CS) 48.991 GHz 48.94- 49.04 GHz
Deuterated formylium (DCO+) 72.039 GHz 71.96- 72.11 GHz
Silicon monoxide (SiO) 86.243 GHz 86.16- 86.33 GHz
Formylium (H13CO+) 86.754 GHz 86.66- 86.84 GHz
Silicon monoxide (SiO) 86.847 GHz 86.76- 86.93 GHz
Ethynyl radical (C2H) 87.300 GHz 87.21- 87.39 GHz
Hydrogen cyanide (HCN) 88.632 GHz 88.34- 88.72 GHz
Formylium (HCO+) 89.189 GHz 88.89- 89.28 GHz
Hydrogen isocyanide (HNC) 90.664 GHz 90.57- 90.76 GHz
Diazenylium (N2H) 93.174 GHz 93.07- 93.27 GHz
Carbon monosulphide (CS) 97.981 GHz 97.65- 98.08 GHz
Carbon monoxide (C18O) 109.782 GHz 109.67- 109.89 GHz
Carbon monoxide (13CO) 110.201 GHz 109.83- 110.31 GHz
Carbon monoxide (C17O) 112.359 GHz 112.25- 112.47 GHz
Carbon monoxide (CO) 115.271 GHz 114.88- 115.39 GHz
Formaldehyde (H213CO) 137.450 GHz 137.31- 137.59 GHz
Formaldehyde (H2CO) 140.840 GHz 140.69- 140.98 GHz
Carbon monosulphide (CS) 146.969 GHz 146.82- 147.12 GHz
Water vapour (H2O) 183.310 GHz 183.12- 183.50 GHz
Carbon monoxide (C18O) 219.560 GHz 219.34- 219.78 GHz
Carbon monoxide (13CO) 220.399 GHz 219.67- 220.62 GHz
Carbon monoxide (CO) 230.538 GHz 229.77- 230.77 GHz
Carbon monosulphide (CS) 244.953 GHz 244.72- 245.20 GHz
Hydrogen cyanide (HCN) 265.886 GHz 265.62- 266.15 GHz
Formylium (HCO+) 267.557 GHz 267.29- 267.83 GHz
Hydrogen isocyanide (HNC) 271.981 GHz 271.71- 272.25 GHz
Dyazenulium (N2H+) 279.511 GHz 279.23- 279.79 GHz
Carbon monoxide (C18O) 312.330 GHz 329.00- 329.66 GHz
Carbon monoxide (13CO) 330.587 GHz 330.25- 330.92 GHz
Carbon monosulphide (CS) 342.883 GHz 342.54- 343.23 GHz
Carbon monoxide (CO) 345.796 GHz 345.45- 346.14 GHz
Hydrogen cyanide (HCN) 354.484 GHz 354.13- 354.84 GHz
Formylium (HCO+) 356.734 GHz 356.37- 357.09 GHz
Dyazenulium (N2H+) 372.672 GHz 372.30- 373.05 GHz
Water vapour (H2O) 380.197 GHz 379.81- 380.58 GHz
Carbon monoxide (C18O) 439.088 GHz 438.64- 439.53 GHz
Carbon monoxide (13CO) 440.765 GHz 440.32- 441.21 GHz
Carbon monoxide (CO) 461.041 GHz 460.57- 461.51 GHz
Heavy water (HDO) 464.925 GHz 464.46- 465.39 GHz
Carbon (CI) 492.162 GHz 491.66- 492.66 GHz
Water vapour (H218O) 547.676 GHz 547.13- 548.22 GHz
Water vapour (H2O) 556.936 GHz 556.37- 557.50 GHz
Ammonia (15NH3) 572.113 GHz 571.54- 572.69 GHz
Ammonia (NH3) 572.498 GHz 571.92- 573.07 GHz
Carbon monoxide (CO) 691.473 GHz 690.78- 692.17 GHz
Hydrogen cyanide (HCN) 797.433 GHz 796.64- 789.23 GHz
Formylium (HCO+) 802.653 GHz 801.85- 803.85 GHz
Carbon monoxide (CO) 806.652 GHz 805.85- 807.46 GHz
Carbon (CI) 809.350 GHz 808.54- 810.16 GHz